Bar Graph

Advantage: it compares data across categories

Disadvantage: it can only compare one set of data and depending on the intervals, it can be inaccurate

Double Bar Graph

Advantage: it compares two sets of data across categories

Disadvantage: it can only compare a couple of data and depending on the intervals, it can be inaccurate

Line Graph

Advantage: it compares changes in data over time

Disadvantage: the types of data mostly used are the ones that had changed over time

Circle Graph

Advantage: it compares categories (parts) to the whole using percents

Disadvantage: it takes a long time to make and very complicated to construct

Pictograph

Advantage: it compares data that can be easily counted and represented using symbols

Disadvantage: when the symbols are cut, you can't tell how much of the symbol they have taken off

2. How can graphs be misleading. Show 3 ways.

- Putting a break on the y-axis
- Distorting the visuals (making a visual/symbol larger than the rest)
- Distorting the the size of a bar (making a bar wider/ putting more area inside a bar)

A line graph and a bar graph

3b. If you were selling Pizza Subs would you continue? How does your graph explain your answer.

Yes, I would continue selling Pizza Subs. This would be my answer because when I look at my graph, it shows me that they are selling more every week.

Here is a video saying what a graph is in the simplest way:

Here is a site to play graphing games. It's really fun!

http://www.bbc.co.uk/schools/ks2bitesize/maths/data/frequency_diagrams/play.shtml

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